/* Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.activiti.engine.impl.bpmn.parser.handler;

import java.util.Map;

import org.activiti.engine.impl.bpmn.parser.BpmnParse;
import org.activiti.engine.impl.pvm.process.ActivityImpl;
import org.flowable.bpmn.constants.BpmnXMLConstants;
import org.flowable.bpmn.model.BaseElement;
import org.flowable.bpmn.model.EventSubProcess;
import org.flowable.bpmn.model.SubProcess;

/**
 * @author Joram Barrez
 */
public class SubProcessParseHandler extends AbstractActivityBpmnParseHandler<SubProcess> {

    @Override
    protected Class<? extends BaseElement> getHandledType() {
        return SubProcess.class;
    }

    @Override
    protected void executeParse(BpmnParse bpmnParse, SubProcess subProcess) {

        ActivityImpl activity = createActivityOnScope(bpmnParse, subProcess, BpmnXMLConstants.ELEMENT_SUBPROCESS, bpmnParse.getCurrentScope());

        activity.setAsync(subProcess.isAsynchronous());
        activity.setExclusive(!subProcess.isNotExclusive());

        boolean triggeredByEvent = false;
        if (subProcess instanceof EventSubProcess) {
            triggeredByEvent = true;
        }
        activity.setProperty("triggeredByEvent", triggeredByEvent);

        // event subprocesses are not scopes
        activity.setScope(!triggeredByEvent);
        activity.setActivityBehavior(bpmnParse.getActivityBehaviorFactory().createSubprocActivityBehavior(subProcess));

        bpmnParse.setCurrentScope(activity);
        bpmnParse.setCurrentSubProcess(subProcess);

        bpmnParse.processFlowElements(subProcess.getFlowElements());
        processArtifacts(bpmnParse, subProcess.getArtifacts(), activity);

        // no data objects for event subprocesses
        if (!(subProcess instanceof EventSubProcess)) {
            // parse out any data objects from the template in order to set up the necessary process variables
            Map<String, Object> variables = processDataObjects(bpmnParse, subProcess.getDataObjects(), activity);
            activity.setVariables(variables);
        }

        bpmnParse.removeCurrentScope();
        bpmnParse.removeCurrentSubProcess();
    }

}
